Abstract
Telomeres are essential for chromosome integrity, forming a cap structure to protect the ends of eukaryotic linear chromosomes (Blackburn and Greider 1995; McEachern et al. 2000, for reviews). Like those of other eukaryotes, S. pombe chromosomes have telomeric repeats of a short nucleotide sequence. Telomeric DNA consists of the single-stranded, guanine-rich 3′-overhang at the extreme end of chromosomes, flanked by the double-stranded region of telomeric repeats. Several protein complexes are known to bind to these regions of the telomeric DNA to maintain the telomere structure and to perform telomere functions. Telomeric DNA is synthesized by the telomerase enzyme complex, and their length is controlled by positive and negative regulators for the telomerase. Telomeres are made of transcriptionally repressed, non-nucleosomal chromatin and are often localized near the nuclear periphery. The telomeric cap structure prevents DNA damage checkpoint and repair mechanisms from treating telomeres as breaks.
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Hiraoka, Y., Chikashige, Y. (2004). Telomere Organization and Nuclear Movements. In: Egel, R. (eds) The Molecular Biology of Schizosaccharomyces pombe . Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-10360-9_12
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DOI: https://doi.org/10.1007/978-3-662-10360-9_12
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